1. Speaking in multiple languages: Neural correlates of language proficiency in multilingual word production
- Author
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Gerda Videsott, Baerbel Herrnberger, Jo Grothe, Edgar Schilly, Werner Wiater, Manfred Spitzer, Markus Kiefer, and Klaus Hoenig
- Subjects
Adult ,Male ,Linguistics and Language ,Speech production ,Vocabulary ,Cognitive Neuroscience ,media_common.quotation_subject ,Prefrontal Cortex ,Multilingualism ,Experimental and Cognitive Psychology ,Romance languages ,Functional Laterality ,Language and Linguistics ,Young Adult ,Speech and Hearing ,medicine ,Humans ,Speech ,Language proficiency ,Language ,media_common ,Brain Mapping ,Language Tests ,medicine.diagnostic_test ,Working memory ,Brain ,Cognition ,Magnetic Resonance Imaging ,Linguistics ,Italy ,Pattern Recognition, Visual ,Female ,Psychology ,Functional magnetic resonance imaging - Abstract
The human brain has the fascinating ability to represent and to process several languages. Although the first and further languages activate partially different brain networks, the linguistic factors underlying these differences in language processing have to be further specified. We investigated the neural correlates of language proficiency in a homogeneous sample of multilingual native Ladin speakers from a mountain valley in South Tyrol, Italy, who speak Italian as second language at a high level, and English at an intermediate level. In a constrained word production task under functional magnetic resonance imaging (fMRI), participants had to name pictures of objects in Ladin, Italian and English in separate blocks. Overall, multilingual word production activated a common set of brain areas dedicated to known subcomponents of picture naming. In comparison to English, the fluently spoken languages Ladin and Italian were associated with enhanced right prefrontal activity. In addition, the MR signal in right prefrontal cortex correlated with naming accuracy as a measure of language proficiency. Our results demonstrate the significance of right prefrontal areas for language proficiency. Based on the role of these areas for cognitive control, our findings suggest that right prefrontal cortex supports language proficiency by effectively supervising word retrieval.
- Published
- 2010